Powered by Samsung's cutting-edge 3D V-NAND technology, 850 EVO delivers top-class sequential and random read and write performance to optimize everyday computing. With improved performance thanks to TurboWrite technology the 850 EVO provides not only more than a 10% better user experience than 840 EVO but up to 1.9x faster random write speeds for the 120/250 GB models as well. In fact, the 850 EVO delivers top class sequential read (540 MB/s) and write (520 MB/s) performance in all capacities. This comes with optimized random read and write performance on all QD and improved QD1 and QD2 random performance for Client PC usage.

Technology In the early stages of the 840 EVO, Samsung adopted sequential write performance first. With TurboWrite, write speeds are significantly accelerated during data transfers by creating a high-performance write buffer in the SSD. If a consecutive write operation (i.e. no idle time) exceeds the size of the buffer, the transfer will exit TurboWrite and be processed at ”After TurboWrite” speeds. Once the buffer is cleared, TurboWrite performance will resume. However, the buffer size for TurboWrite is more than sufficient for everyday PC use, and you should experience accelerated speeds for most workloads. For the 850 EVO, enhanced TurboWrite technology applied to random write speeds up to 1.9x faster for the 120 GB model and 1.25x faster for the 250GB model over the 840 EVO.

Guaranteed endurance and reliability for maximum use Guaranteed endurance The 850 EVO delivers guaranteed endurance and reliability by doubling the TBW compared to the previous generation 840 EVO backed by an industry leading 5 year warranty. With twice the endurance of a typical NAND flash SSD, the 850 EVO will keep working as long as you do. The 850 EVO guarantees a 5 year limited warranty or 75TBW for 120GB and 250GB, 150TBW for 500GB and 1TB. Enhanced reliability with improved sustained performance With enhanced reliability through improved sustained performance, the 850 EVO assures longterm dependable performance up to 30% longer than the 840 EVO with minimized performance degradation. This means you can use it every day when taking care of work or entertaining yourself knowing it will keep performing even with heavy daily workloads over the years.